Question

1/3a-0,7=-3/5a-3,5 хелп!!!!!​

Answer 1

Ответ:

а=5,25

Объяснение:

Answer 2

To solve the equation 1/3a - 0.7 = -3/5a - 3.5, we'll follow these steps:

Step 1: Simplify the equation if possible. Step 2: Collect the terms with variables on one side of the equation. Step 3: Collect the constant terms on the other side of the equation. Step 4: Solve for the variable. Step 5: Verify the solution.

Let's solve the equation step by step:

Step 1: Simplify the equation if possible. The equation is already simplified.

Step 2: Collect the terms with variables on one side of the equation. Start by moving the terms containing "a" to the left side of the equation and the constant terms to the right side:

1/3a + (3/5)a = -3.5 + 0.7

Step 3: Collect the constant terms on the other side of the equation. Perform the addition on both sides:

(1/3 + 3/5)a = -2.8

To add the fractions, we need a common denominator:

(5/15 + 9/15)a = -2.8

(14/15)a = -2.8

Step 4: Solve for the variable. To isolate "a," we will multiply both sides of the equation by the reciprocal of (14/15), which is (15/14):

(15/14)(14/15)a = -2.8(15/14)

a = -2.8(15/14)

Simplifying:

a = -3

Step 5: Verify the solution. Let's substitute the value of "a" back into the original equation to ensure it satisfies the equation:

1/3a - 0.7 = -3/5a - 3.5

1/3(-3) - 0.7 = -3/5(-3) - 3.5

-1 - 0.7 = 9/5 - 3.5

-1.7 = 1.8 - 3.5

-1.7 = -1.7

Both sides are equal, so the solution is correct.

Therefore, the solution to the equation 1/3a - 0.7 = -3/5a - 3.5 is a = -3.